Stocks › SIBN
SI-BONE, Inc.
SIBN·Nasdaq·
United States·USD
United States·USD$19.55
-0.26 (-1.31%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
SIBN
SI-BONE, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
SIBNS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of SIBN by members of U.S. Congress · 0 on record
No congressional trades in SIBN on record.
Whale Activity
Position changes in SIBN reported for 2026-06-30 by 12 tracked institutional filers
- Increased3
- New1
- Held0
- Decreased4
- Closed2
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 3.7M | $60.0M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | $30.0M | increased |
| Point72 Asset Management, L.P. | 790.3K | $12.9M | decreased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 548.3K | $8.9M | increased |
| HighMark Wealth Management LLC | 425.0K | $6.9M | — |
| MILLENNIUM MANAGEMENT LLC | 364.3K | $5.9M | decreased |
| VELA Investment Management, LLC | 201.1K | $3.3M | new |
| D. E. Shaw & Co., Inc. | 185.9K | $3.0M | decreased |
| RENAISSANCE TECHNOLOGIES LLC | 44.1K | $720K | decreased |
| Bullseye Asset Management LLC | 144.5K | $2K | — |
| Citadel Advisors LLC | 0 | $0 | closed |
| Two Sigma Investments, LP | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by SIBN insiders, by quarter · Form 4
Recent Insider Transactions
961 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Maheshwari AnshulChief Op & Financial Officer | Sale | −1,731 | $19.50 | $34K | Oct 5, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Op & Financial Officer | Sale | −1,758 | $18.19 | $32K | Oct 2, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Op & Financial Officer | Sale | −1,560 | $18.17 | $28K | Oct 2, 2026 | Form 4 ↗ |
| PISETSKY MICHAEL A.SVP, Ops & Adm/Chief Legal Ofr | Sale | −34 | $18.14 | $617 | Oct 2, 2026 | Form 4 ↗ |
| PISETSKY MICHAEL A.SVP, Ops & Adm/Chief Legal Ofr | Sale | −1,799 | $18.14 | $33K | Oct 2, 2026 | Form 4 ↗ |
| PISETSKY MICHAEL A.SVP, Ops & Adm/Chief Legal Ofr | Sale | −1,300 | $18.20 | $24K | Oct 2, 2026 | Form 4 ↗ |
| DUNN JEFFREY WDirector · Director | Sale | −20.0K | $18.47 | $369K | Oct 1, 2026 | Form 4 ↗ |
| DUNN JEFFREY WDirector · Director | Sale | −18.6K | $18.91 | $352K | Sep 1, 2026 | Form 4 ↗ |
| DUNN JEFFREY WDirector · Director | Sale | −1,367 | $18.91 | $26K | Sep 1, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Op & Financial Officer | Sale | −11.6K | $20.11 | $234K | Aug 24, 2026 | Form 4 ↗ |
| FRANCIS LAURAChief Executive Officer · Director | Sale | −26.0K | $20.12 | $523K | Aug 24, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Op & Financial Officer | Sale | −11.2K | $20.02 | $225K | Aug 21, 2026 | Form 4 ↗ |
| FRANCIS LAURAChief Executive Officer · Director | Sale | −3,923 | $20.02 | $79K | Aug 21, 2026 | Form 4 ↗ |
| FRANCIS LAURAChief Executive Officer · Director | Sale | −51.9K | $19.46 | $1.0M | Aug 20, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Op & Financial Officer | Sale | −5,747 | $19.55 | $112K | Aug 19, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Financial Officer | Sale | −2,476 | $18.68 | $46K | Aug 17, 2026 | Form 4 ↗ |
| Maheshwari AnshulChief Financial Officer | Sale | −2,189 | $18.62 | $41K | Aug 17, 2026 | Form 4 ↗ |
| PISETSKY MICHAEL A.SVP, Ops & Adm/Chief Legal Ofr | Sale | −1,871 | $18.65 | $35K | Aug 17, 2026 | Form 4 ↗ |
| PISETSKY MICHAEL A.SVP, Ops & Adm/Chief Legal Ofr | Sale | −1,854 | $18.62 | $35K | Aug 17, 2026 | Form 4 ↗ |
| FRANCIS LAURAChief Executive Officer · Director | Sale | −3,892 | $18.66 | $73K | Aug 17, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding SIBN · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Small Cap Growth Fund American Century Mutual Funds, Inc. | 1.9M | $33.7M | 0.60% | Jul 31, 2026 |
| Impax Small Cap Fund IMPAX FUNDS SERIES TRUST I | 1.4M | $23.3M | 2.45% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.3M | $21.8M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.1M | $18.6M | 0.02% | Jun 30, 2026 |
| First Eagle Small Cap Opportunity Fund First Eagle Funds | 673.5K | $12.0M | 0.41% | Jul 31, 2026 |
| College Retirement Equities Fund - Total Global Stock Account College Retirement Equities Fund | 578.4K | $9.4M | 0.01% | Jun 30, 2026 |
| JNL Multi-Manager Small Cap Growth Fund JNL Series Trust | 549.4K | $9.0M | 0.35% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 480.0K | $8.5M | 0.03% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 457.3K | $7.5M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF iShares Trust | 404.4K | $6.6M | 0.04% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list SIBN's shares (CUSIP 825704109), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- ERIC BANNASCHSCHEDULE 13G · passive (13G) · 3.3M shares7.5%
Aug 14, 2026 · ↗ - Cadian Capital Management GP, LLCSCHEDULE 13G · passive (13G) · 3.3M shares7.5%
Aug 14, 2026 · ↗ - Cadian Capital Management, LPSCHEDULE 13G · passive (13G) · 3.3M shares7.5%
Aug 14, 2026 · ↗ - BlackRock, Inc.SCHEDULE 13G/A · passive (13G) · 3.6M shares8.0%
Jul 30, 2026 · ↗ - Mathew P. ArensSCHEDULE 13G/A · passive (13G) · 8.1M shares18.4%
May 7, 2026 · ↗ - First Light Asset Management, LLCSCHEDULE 13G/A · passive (13G) · 8.0M shares18.0%
May 7, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming SI-BONE, Inc. as client
No lobbying filings found naming SI-BONE, Inc. as the client.
Government Contracts
Federal awards to SI-BONE, Inc. · USAspending
No federal contract awards found for SI-BONE, Inc..
U.S. Patents
Recent USPTO applications naming SI-BONE, Inc.
No USPTO patent applications found for SI-BONE, Inc..
Annual Financials
From SIBN's 10-K filings · XBRL
No annual XBRL figures on record for SIBN. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in SIBN's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 1.01, 2.03, 8.01, 9.01Material agreement · Direct financial obligation · Other eventsSep 11, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 3, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 5.07, 9.01Material agreement · Direct financial obligation · Shareholder voteJun 8, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsMay 11, 2026
EDGAR ↗
About SI-BONE, Inc.
From SEC EDGAR company records
Industry (SIC 3841)Surgical & Medical Instruments & Apparatus
SectorHealthcare
HeadquartersSANTA CLARA, CA
IncorporatedDE
SEC CIK0001459839 ↗
Former namesSI-Bone Inc.